Teledyne 320 User Manual
Portable Oxygen Detectors
Instruction Manual
Model 320 Series
Portable Oxygen Detectors
320A
320B
320BRC
320P
DANGER
HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING
SYSTEM.
PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM.
HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR
A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.
ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE
CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/
MANAGER.
Teledyne Analytical Instruments
P/N M320
02/18/98
ECO # 98-0092
i
Model 320 Series
Copyright © 1998 Teledyne Electronic Technologies/Analytical Instruments
All Rights Reserved
No part of this manual may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any other language or computer language in whole or
in part, in any form or by any means, whether it be electronic, mechanical, magnetic,
optical, manual, or otherwise, without the prior written consent of Teledyne Electronic
Technologies/Analytical Instruments, 16830 Chestnut Street, City of Industry, CA
91749-1580.
Warranty
This equipment is sold subject to the mutual agreement that it is warranted by us
free from defects of material and of construction, and that our liability shall be limited to
replacing or repairing at our factory (without charge, except for transportation), or at
customer plant at our option, any material or construction in which defects become
apparent within one year from the date of shipment, except in cases where quotations or
acknowledgements provide for a shorter period. Components manufactured by others
bear the warranty of their manufacturer. This warranty does not cover defects caused by
wear, accident, misuse, neglect or repairs other than those performed by Teledyne or an
authorized service center. We assume no liability for direct or indirect damages of any
kind and the purchaser by the acceptance of the equipment will assume all liability for
any damage which may result from its use or misuse.
We reserve the right to employ any suitable material in the manufacture of our
apparatus, and to make any alterations in the dimensions, shape or weight of any parts,
in so far as such alterations do not adversely affect our warranty.
Important Notice
This instrument provides measurement readings to its user, and serves as a tool by
which valuable data can be gathered. The information provided by the instrument may
assist the user in eliminating potential hazards caused by his process; however, it is
essential that all personnel involved in the use of the instrument or its interface, with the
process being measured, be properly trained in the process itself, as well as all instrumentation related to it.
The safety of personnel is ultimately the responsibility of those who control process
conditions. While this instrument may be able to provide early warning of imminent
danger, it has no control over process conditions, and it can be misused. In particular,
any alarm or control systems installed must be tested and understood, both as to how they
operate and as to how they can be defeated. Any safeguards required such as locks,
labels, or redundancy, must be provided by the user or specifically requested of Teledyne
at the time the order is placed.
Therefore, the purchaser must be aware of the hazardous process conditions.
The purchaser is responsible for the training of personnel, for providing hazard warning
methods and instrumentation per the appropriate standards, and for ensuring that hazard
warning devices and instrumentation are maintained and operated properly.
Teledyne Electronic Technologies/Analytical Instruments (TET/AI), the
manufacturer of this instrument, cannot accept responsibility for conditions beyond its
knowledge and control. No statement expressed or implied by this document or any
information disseminated by the manufacturer or its agents, is to be construed as a
warranty of adequate safety control under the user’s process conditions.
ii
Teledyne Analytical Instruments
Portable Oxygen Detectors
Table of Contents
Introduction
1.1 Description .................................................................1-1
1.2 Features .....................................................................1-2
1.2.1 Multiple Sampling Modes..............................1-2
1.2.2 Micro-Fuel Cell..............................................1-2
1.2.3 External Output Capability ............................1- 2
1.2.4 Accessory Flow-through Adapter ..................1-2
Operation and Maintenance
2.1 Multiple Sampling Modes ...........................................2 -1
2.1.1 Sampling By Diffusion ...................................2-1
2.1.2 Sampling by Eduction (Model 320P).............2-1
2.2 Cell Saver...................................................................2-1
2.3 Calibration ..................................................................2-2
2.4 Micro-Fuel Cell ...........................................................2-2
2.4.1 Cell Replacement..........................................2-2
2.4.2 Cell Life and Warranty...................................2 -2
2.5 External Output ..........................................................2-3
2.6 Accessory Flow-through Adapter ...............................2-3
2.7 Battery Charging (320P & B/RC only) ........................2-4
2.8 Samples Containing CO
2.9 Storing the Instrument ................................................2-5
2.10 Filter Maintenance......................................................2-5
............................................................................
2
2-4
Troubleshooting
3.1 General
3.1.1 Erratic Reading (Meter Pointer Jumps).........3-1
3.1.2 Can’t Span (Meter won’t reach CAL mark) ...3-1
3.2 Pump Problems..........................................................3-1
3.2.1 Pump Does Not Run .....................................3-1
3.2.2 Removal of Water from Pump.......................3-1
3.2.3 Pump Removal/Installation ...........................3- 2
Appendix
Specifications .................................................................... A-1
Recommended Spare Parts List........................................ A-3
Drawing List ..................................................................... A-4
Material Safety Data Sheet ............................. MSDS-1
Teledyne Analytical Instruments
iii
Model 320 Series
Models 320BRC and 320P are complying with all of the requirements of the Commonwealth of Europe (CE) for Radio Frequency
Interference, Electromagnetic Interference (RFI/EMI), and Low
Voltage Directive (LVD).
Models 320A and 320B are
ments of the Commonwealth of Europe.
The following International Symbols are used throughout the Instruction Manual for your visual and immediate warnings and when
you have to attend CAUTION while operating the instrument:
GROUND
Protective Earth
not
complying with the require-
(Located inside the case assembly
near case handle)
CAUTION, The operator needs to refer to the manual
for further information. Failure to do so may
compromise the safe operation of the equipment.
iv
CAUTION, Risk of Electric Shock
Teledyne Analytical Instruments
Introduction Portable Oxygen Detectors
IntroductionIntroduction
Introduction
IntroductionIntroduction
1.11.1
1.1
1.11.1
The Teledyne Electronic Technologies/Analytical Instruments (TET/AI)
Series 320BRC and 320P Portable Oxygen Detectors meet or exceed all of
the requirements of the Commonwealth of Europe (CE) for Radio Frequency Interference and Electromagnetic Interference (RFI/EMI) protection. Models 320A and 320B are
the Commonwealth of Europe. The analyzers are designed to continuously
measure the percentage of oxygen in a gas atmosphere. The measurement
is specific for oxygen and no special standardization or zero gases are
required. A letter designation, after the model number, indicates a specific
version as specified by the customer at time of purchase.
DescriptionDescription
Description
DescriptionDescription
not
complying with the requirements of
The 320A requires 115VAC or 220VAC 50/60Hz
The 320B uses four replaceable D-size batteries.
The 320BRC is powered by two permanently mounted recharge-
able nickel-cadmium batteries.
The 320P is powered by two permanently mounted rechargeable
nickel-cadmium batteries and has an integral sample pump. This
analyzer is designed to make spot check measurements of oxygen
in flue gas and process gas streams.
Oxygen is sensed using a TET/AI patented micro-fuel cell (MFC), that
consumes oxygen from the atmosphere surrounding the measuring probe
and generates a proportional electric current. The generated current is
amplified and read out on a built-in meter. A voltage output is available for
driving an external recorder. A selective range attenuation circuit and a
temperature compensation circuit provide temperature compensated outputs.
The standard operating ranges for Models 320A, 320B and BRC are 0-5%,
0-25% and 0-100% oxygen. The standard operating ranges for the Model
320P are 0-5%, 0-10% and 0-25% oxygen.
Teledyne Analytical Instruments
1-1
Model 320 Series Chapter 1
1.21.2
1.2
1.21.2
The 320 series detectors sample by diffusion in three different modes.
The MFC carries a warranty that covers its normal life expectancy. However, far greater life expectancy can be achieved with the cell-saver feature.
The cell-saver is a sealing cap that keeps oxygen from the cell when the
instrument is not in use. With the cell-saver cap in place, the output drops
to less than 10% overnight and continues to drop as long as the cell-saver
cap remains in place.
FeaturesFeatures
Features
FeaturesFeatures
1.2.11.2.1
1.2.1
1.2.11.2.1
• The probe assembly is mounted in the probe holder on the side of
the unit. The sample flows over the probe, using the accessory
flow-through adapter (P/N A9689).
• This is done remotely by removing the probe assembly from its
holder and extending the coiled probe cable up to six feet.
• An accessory probe mounting bar (P/N A8657) which is part of the
optional probe (P/N B16952) can be used to mount the probe in a
fixed position (remote location) if the application warrants at the
time of ordering the unit.
• In the case of Model 320P, the analyzer's integral pump draws the
sample through the analyzer. If the sample is at a positive pressure,
it is not necessary to operate the pump.
1.2.21.2.2
1.2.2
1.2.21.2.2
Multiple Sampling ModesMultiple Sampling Modes
Multiple Sampling Modes
Multiple Sampling ModesMultiple Sampling Modes
Micro-Fuel CellMicro-Fuel Cell
Micro-Fuel Cell
Micro-Fuel CellMicro-Fuel Cell
1.2.31.2.3
1.2.3
1.2.31.2.3
A simultaneous voltage output signal is available to supplement the
detector's integral meter. This permits indicating and/or recording the
oxygen level at a remote location.
1.2.41.2.4
1.2.4
1.2.41.2.4
The flow-through adapter designed for the Series 320 Portable Oxygen
Analyzers has radially and axially oriented flow-through hoses. The axial
inlet provides rapid purging of the dead volume at relatively low flow rates.
At high flow rates, the radial inlet is used.
1-2
External Output CapabilityExternal Output Capability
External Output Capability
External Output CapabilityExternal Output Capability
Accessory Flow-through AdapterAccessory Flow-through Adapter
Accessory Flow-through Adapter
Accessory Flow-through AdapterAccessory Flow-through Adapter
Teledyne Analytical Instruments
Operation and Maintenance Portable Oxygen Detectors
Operation and MaintenanceOperation and Maintenance
Operation and Maintenance
Operation and MaintenanceOperation and Maintenance
CAUTION: If the instrument is used in a manner not specified
by TAI, the protection provided by the instrument
may be imapired.
2.12.1
2.1
2.12.1
NOTE: If the sample is at a positive pressure of 0.5 #/in2 or more, it is
2.22.2
2.2
2.22.2
Multiple Sampling ModesMultiple Sampling Modes
Multiple Sampling Modes
Multiple Sampling ModesMultiple Sampling Modes
2.1.12.1.1
2.1.1
2.1.12.1.1
1. Mount the probe assembly in the probe holder on the side of the
unit. The sample flows over the probe, using the accessory
flow-through adapter (P/N A9689).
2. To sample remotely, remove the probe assembly from its holder
and extend the coiled probe cable up to six feet.
3. Use an accessory probe mounting bar (P/N A8657) to mount the
probe in a fixed position if the application warrants.
2.1.22.1.2
2.1.2
2.1.22.1.2
1. Connect a piece of plastic tubing, such as Tygon, of 0.25 in inside
diameter, to the inlet port fitting with the other end connected to the
sample source.
2. Use the analyzer’s integral pump to educt the sample for analysis.
(Maximum vacuum is 60 in water column.)
Cell SaverCell Saver
Cell Saver
Cell SaverCell Saver
Sampling By DiffusionSampling By Diffusion
Sampling By Diffusion
Sampling By DiffusionSampling By Diffusion
Sampling by Eduction (Model 320P)Sampling by Eduction (Model 320P)
Sampling by Eduction (Model 320P)
Sampling by Eduction (Model 320P)Sampling by Eduction (Model 320P)
not necessary to operate pump.
A sealing cap is provided to keep oxygen from the cell when the instrument
is not in use. With the cell-saver cap in place, the cell slowly consumes the
trapped oxygen, and the output drops off towards zero. Overnight the
output will drop to less than 10% and will continue to drop as long as the
cell-saver cap remains in place.
The equilibrium oxygen level depends upon the integrity of the seals in the
probe assembly. The better the seals, the closer to zero the output will
drop. (The seals were designed to achieve an equilibrium of 2% or less.)
Teledyne Analytical Instruments
2-1
Model 320 Series Chapter 2
2.32.3
2.3
2.32.3
NOTE: The calibration mark on the 0-25 % range of the detector meter
2.42.4
2.4
2.42.4
When the detector cell nears the end of its useful life, meter readings will
become erratic. Shortly thereafter, the cell output will drop off sharply to
zero. Replace the cell at this point.
CalibrationCalibration
Calibration
CalibrationCalibration
1. Remove the flow-through adapter, and place the range switch in the
0-25% range. On the standard 320P, this is the HI position of the
Range switch.
2. Rotate the Span control until the meter indication pointer coincides
with the red mark extending into the scale of the meter.
3. Repeat this procedure after the cell has been in the instrument at
least 24 hours.
4. After initial calibration, check the span setting before each use.
coincides with the normal oxygen concentration of the atmosphere. Therefore, calibration using this mark as a standard
should not be undertaken in any area where the oxygen content
of the atmosphere surrounding the probe assembly is being
controlled.
Micro-Fuel CellMicro-Fuel Cell
Micro-Fuel Cell
Micro-Fuel CellMicro-Fuel Cell
2.4.12.4.1
2.4.1
2.4.12.4.1
Cell ReplacementCell Replacement
Cell Replacement
Cell ReplacementCell Replacement
NOTE: A spare cell should be ordered soon after receipt of the detector,
and each time the cell is replaced thereafter.
2.4.22.4.2
2.4.2
2.4.22.4.2
The MFC carries a warranty that covers its normal life expectancy. However, far greater life expectancy can be achieved with the cell-saver feature
already discussed. See the specifications section below for warranty,
response time and electrical output of the various cells.
Customers having warranty claims must return the cell in question immediately to the factory for evaluation. If it is determined that failure is due to
faulty workmanship or parts, the cell will be replaced at no cost to the
customer. Any evidence of tampering, or damage through mishandling, will
render the cell warranty null and void.
If a cell was working satisfactorily, but ceases to function before the warranty period expires, the customer will receive credit, on a prorated basis,
towards the purchase of a new cell.
Cell Life and WarrantyCell Life and Warranty
Cell Life and Warranty
Cell Life and WarrantyCell Life and Warranty
2-2
Teledyne Analytical Instruments
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